skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Correlations of π N partial waves for multireaction analyses

Abstract

In the search for missing baryonic resonances, many analyses include data from a variety of pion- and photon-induced reactions. For elastic πN scattering, however, usually the partial waves of the SAID (Scattering Analysis Interactive Database) or other groups are fitted, instead of data. We provide the partial-wave covariance matrices needed to perform correlated χ 2 fits, in which the obtained χ 2 equals the actual χ 2 up to nonlinear and normalization corrections. For any analysis relying on partial waves extracted from elastic pion scattering, this is a prerequisite to assess the significance of resonance signals and to assign any uncertainty on results. Lastly, the influence of systematic errors is also considered.

Authors:
 [1];  [2];  [3];  [4]
  1. George Washington Univ., Washington, D.C. (United States). Institute for Nuclear Studies; Astronomy Physics, and Statistics Institute of Sciences; Dept. of Physics; Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. George Washington Univ., Washington, D.C. (United States). Dept. of Physics
  3. Univ. Bonn, Bonn (Germany). Helmholtz-Institut fur Strahlen -und Kernphysik (Theorie) and Bethe Center for Theoretical Physics
  4. George Washington Univ., Washington, D.C. (United States). Institute for Nuclear Studies and Dept. of Physics
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1306202
Alternate Identifier(s):
OSTI ID: 1257494
Report Number(s):
JLAB-THY-16-2320; DOE/OR/23177-3904; arXiv:1603.07265
Journal ID: ISSN 2469-9985; PRVCAN
Grant/Contract Number:
AC05-06OR23177; SC0014133; 1452055; 1415459
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 93; Journal Issue: 6; Related Information: Jefferson Lab publications link: https://misportal.jlab.org/ul/publications/view_pub.cfm?pub_id=14473; Journal ID: ISSN 2469-9985
Publisher:
APS
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Doring, M., Revier, J., Ronchen, D., and Workman, R. L. Correlations of πN partial waves for multireaction analyses. United States: N. p., 2016. Web. doi:10.1103/PhysRevC.93.065205.
Doring, M., Revier, J., Ronchen, D., & Workman, R. L. Correlations of πN partial waves for multireaction analyses. United States. doi:10.1103/PhysRevC.93.065205.
Doring, M., Revier, J., Ronchen, D., and Workman, R. L. Wed . "Correlations of πN partial waves for multireaction analyses". United States. doi:10.1103/PhysRevC.93.065205. https://www.osti.gov/servlets/purl/1306202.
@article{osti_1306202,
title = {Correlations of πN partial waves for multireaction analyses},
author = {Doring, M. and Revier, J. and Ronchen, D. and Workman, R. L.},
abstractNote = {In the search for missing baryonic resonances, many analyses include data from a variety of pion- and photon-induced reactions. For elastic πN scattering, however, usually the partial waves of the SAID (Scattering Analysis Interactive Database) or other groups are fitted, instead of data. We provide the partial-wave covariance matrices needed to perform correlated χ2 fits, in which the obtained χ2 equals the actual χ2 up to nonlinear and normalization corrections. For any analysis relying on partial waves extracted from elastic pion scattering, this is a prerequisite to assess the significance of resonance signals and to assign any uncertainty on results. Lastly, the influence of systematic errors is also considered.},
doi = {10.1103/PhysRevC.93.065205},
journal = {Physical Review C},
number = 6,
volume = 93,
place = {United States},
year = {Wed Jun 15 00:00:00 EDT 2016},
month = {Wed Jun 15 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 4works
Citation information provided by
Web of Science

Save / Share: